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@ 2019-08-08T05:09:35Z

<?php

$array1 = [
    1 => "tenants",
    2 => "modules",
];

$array2 = [
    "child" => [
        "prefix" => "tenants",
        "slug" => "tenants",
        "child" => [
            [
                "prefix" => "modules/{id}",
                "slug" => "modules"
            ],
            [
                "prefix" => "fetch/{id}",
                "slug" => "fetch"
            ],

        ],
    ],
];
$res = [];
$result =[];

foreach ($array1 as $asd) {
        array_walk_recursive($array2['child'],
            function ($item, $key) use (&$result, &$res, &$asd) {

                if ($key == "slug") {
                    if ($item == $asd) {
                        $res[] = $item;
                    }

                }
                if ($key == 'prefix') {
                    $result[] = $item;
                }

            });
}

print_r($result);

Output for git.master, git.master_jit, rfc.property-hooks: Array ( [0] => tenants [1] => modules/{id} [2] => fetch/{id} [3] => tenants [4] => modules/{id} [5] => fetch/{id} )

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2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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